Dear colleagues, We are pleased to announce that the 4th CORTICO days will take place in Autrans (near Grenoble, in France) from May 11-13, 2020. This year, they will be dedicated to: *" Invasive and non invasive brain-computer interfaces - A handshake over the cliff "* The conference website in now online, HERE <https://corticodays.sciencesconf.org/>. You are already invited to register and submit abstracts, knowing that the space of the conference center is limited. Looking forward welcoming you in Autrans, Blaise Yvert, for the conference organizing committee -- Blaise Yvert, PhD. Inserm Research Director Team Neurotechnology and Network Dynamics BrainTech Laboratory U1205 Inserm and Univ Grenoble Alpes UFR Chimie Biologie Bâtiment Biologie B 3e étage 2280 rue de la piscine 38400 Saint Martin d'Hères France Tel (admin). +33 4 56 52 03 73 Tel (direct). +33 4 56 52 03 74 Tel (lab). +33 4 56 52 03 81 Tel (mobile). +33 6 32 88 75 90 https://sites.google.com/view/blaise-yvert/accueil http://www.braincom-project.eu/